Th350 problems after engine swap

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74propu

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austin
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1974 1980 1986
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c10s/b c10 s/b c10l/b
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5.3 / ?/454 tbi
When you put the bolts in the flexplate for the converter did the converter spin easy to line up the bolt holes and have room to move back and forward in the trans pump . If not then you may not of had the converter seated all the way in the pump .when you put the converter back in the trans you did spin the converter to get it to drop in the pump .It should have went in 2 times spin and slide in 1 notch spin again slide in 1 moor time in the pump ears . if it didn't slide on and drop in 2 times you may have broke off the pump ears . that will keep the pump from building presser . then it is time for a rebuild
 

74 Shortbed

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Once isn't bad. I know a guy that did that several times... he's not a mechanic any more thank goodness.
That's a good thing, lol. :D
 

Heyzeuscristos

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Well it looks like the converter wasnt put in correctly and it sheared the pump gears. Ill make sure to take a look inside when i pull the pump but hopefully this is the only thing wrong with it. Thanks for your help guys
 

74 Shortbed

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Well it looks like the converter wasnt put in correctly and it sheared the pump gears. Ill make sure to take a look inside when i pull the pump but hopefully this is the only thing wrong with it. Thanks for your help guys
Yep, figured that's what it was seen it many times, I'm surprised you didn't hear a whine though..
 

Honky Kong jr

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Thats what i was thinking..
 

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